package com.luweijie.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

@Configuration
public class ThreadConfig {

    @Bean(name ="pushThreadPoolExecutor")
    public ThreadPoolTaskExecutor executor(){
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        int core = Runtime.getRuntime().availableProcessors();
        executor.setCorePoolSize(core);//设置核心线程数
        executor.setMaxPoolSize(4);//设置最大线程数
        executor.setKeepAliveSeconds(3);//除核心线程外的线程存活时间
        executor.setQueueCapacity(40);//如果传入值大于0，底层队列使用的是LinkedBlockingQueue,否则默认使用SynchronousQueue
        executor.setThreadNamePrefix("thread-execute");//线程名称前缀
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());//设置拒绝策略
        return executor;
    }

}
